Victoria Clark, Claire Danes Victoria Clark, Claire Danes

Tony Award-winning stage actress Victoria Clark is joining Showtime's Homeland in a key role, Entertainment Weekly reports.

Please note that when I say "key role," I really mean, "Oh wow, this is big. Like bigger than that weird Brody drug trip from a few weeks ago." So you can still turn back now if you want to remain unspoiled!

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2014 Fall TV report card: How are the new shows doing?

Clark has been cast in the very important role of Carrie's (Clarie Danes) mom! There are no details regarding the what, where, when, why or how of her appearance on the Showtime drama, which recently finished filming its fourth season. But suffice it to say, this is big news.

The late James Rebhorn played Carrie's father during the show's first three seasons before he passed away earlier this year.

What do you think of Clark's casting?

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